| 1QTQ: reference: How glutaminyl-tRNA synthetase selects glutamine., Rath VL, Silvian LF, Beijer B, Sproat BS, Steitz TA, Structure 1998 Apr 15;6(4):439-49. PMID: 9562563 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).